Problem in Moving point series in logarithmic AXIS

[amol]

Hi Steema Support,
I am using tee chart Point series in Window form application, here I am facing one problem related to moving point series on my chart whose Left and Right Axis is Logarithmic.
please see the attachment below. It will so helpful for us if you please provide any alternative solution.

Thanks in advance.

Thanks and Regards
Planoresearch

[Narcís]

Hello,

I'm not 100% sure about what you need. Probably, the examples in the threads below will help you:

http://www.teechart.net/support/viewtop ... nts#p53511
http://www.teechart.net/support/viewtop ... nts#p53274

[amol]

Hi Steema Support,
Thanks for your reply. But it is not fruitful for us because in my situation there is a point series containing approx. 500 points and plotted on chart containing log axis. So we are moving the points using the logic.
Firstly, we convert all the points value into Screen Points value using “ValuePointToScreenPoint ()” and then move all the points by calculating the value as per screen points.
Then finally we draw all the points on chart by converting them in to screen point to value points by using “ScreenPointToValuePoint()”. This conversion from value to screen and screen to value makes points movement very slow and the conversion I have done because chart containing logarithmic axis.

It will so helpful for us if you please provide any alternative solution as soon as possible.

Thanks and Regards
Planoresearch

[Sandra]

Hello Amol,

Many thanks for your information, but would be very helpful for us if to complete the information, you could send us a simple project, where we can reproduce your issue to try to suggest a solution for you.

Thanks,

[amol]

Hi Steema Support,
Thanks for your reply.
As per your reply I am attaching a sample for the same.

Untitled.jpg (51.87 KiB) Viewed 24248 times

It will so helpful for us if you please provide any alternative solution as soon as possible.

Thanks and Regards
Planoresearch

[Sandra]

Hello Amol,

Your project draws only the series with your values, it is correct? Or when I do click in series this should be move? I need see as you do to move the series to reproduce your problem and try to give you a solution.

Thanks,

[amol]

Hi Steema Support,
Thanks for your reply.
I am attaching a sample project please have a look.

It will so helpful for us if you please provide any alternative solution as soon as possible.

Thanks and Regards
Planoresearch

[Sandra]

Hello amol,

I am working with your code, I will try to suggest a solution asap.

Thanks,

[Sandra]

Hello Amol,

Ok, I have made some modifications to try to adjust your code and seems it work. Could you check my attach project and tell us if it works as you like?

PointSeriesMovementinLogAxis2.zip

(16.33 KiB) Downloaded 792 times

I hope will helps.

Thanks,

[amol]

Hi Steema Support,

Thanks for your reply.

Your reply is helpful for us but not exactly resolving our issue. Now we are attaching a vedio showing the need.
In this when we click and move the whole curve is moved and when we mouse up then the curve or data plotted as per axis values.One important thing is that when we move curve then the shape of curve does not changed.

It will so helpful for us if you please provide any alternative solution as soon as possible.

Thanks and Regards
Planoresearch

[Sandra]

Hello amol,
Many thanks for your video; it was very helpful to understand as you want exactly. In this point, I have found two examples where there are dragged the Series and I think the examples can be helping you to achieve as you want:

http://www.teechart.net/support/viewtopic.php?t=4833
http://www.teechart.net/support/viewtop ... ies#p44880

If you have any problems, please let me know and I try to find a solution.

Thanks,

[amol]

Hi Steema Support,
Many thanks for your reply and given examples but it is not same thing for what we are looking. So please provide any alternate solution for the same.
Regarding Link 1:
In given link http://www.teechart.net/support/viewtopic.php?t=4833.
First thing is that in this example movement of line series shown but when we visible line series pointer then on line movement line pointer not visible.
Second thing is that we want to use points series in Logarithmic axis as shown in video(that we previously send).
Regarding Link 2:
And in given link http://www.teechart.net/support/viewtop ... ies#p44880
In this example points series moves in Bitmap form but when we mouse up then series not draw as shown in mouse move, meaning that on mouse move series shape are different and on mouse up series shape are different.
It will so helpful for us if you please provide any solution asap.

Thanks in advance.

Thanks and Regards
Planoresearch

[Christopher]

Hello!

Hi Steema Support,
Many thanks for your reply and given examples but it is not same thing for what we are looking. So please provide any alternate solution for the same.

Using the example project you gave us here, along with the latest version of TeeChart.dll, I get the following (a video here).

Can you please tell me if you've ever seen such an error message? This error message leads me to suspect that an entirely different way of working is going to be necessary here.

Logarithmic axes are especially problematic to program, as you have experienced yourself. As you can see, even using the standard TeeChart scroll functionality (right mouse button) does not work as it works in non-logarithmic axes. I am not particularly optimistic that we the present TeeChart code we are going to be able to reproduce the functionality you are looking for.

[amol]

Hi Steema Support,
Many thanks for your reply as you told that logarithimic axes are problematic, i agree with your point. But please do needfull or provide any alternative solution for the same. Because we have to achieve this functionality in my application by any mean.

Thanks in advance.

Thanks and Regards
Planoresearch

[Christopher]

Many thanks for your reply as you told that logarithimic axes are problematic, i agree with your point. But please do needfull or provide any alternative solution for the same. Because we have to achieve this functionality in my application by any mean.

I'm afraid to say that being able to drag an entire series across a chart when the chart axes are logarithmic without the series suffering any deformation to its shape is something which is not currently possible in the TChart code. Getting such functionality to work is something that would require a lot of work on our part, if indeed it is possible.